Polar Bear 5K 2021

1700 E Louisiana Ave, Denver, CO 80210, USA


You run faster when it's cold, right? Get a great time and have a great time at the Polar Bear 5K! Come on! All the "cool" runners are doing it, come get your Chill on!


  • Participants receive an official Polar Bear Mug (filled with some totally chill goodies)!
  • Free Kids Fun Run (8yrs and younger) - on hold until further notice due to COVID
  • Chill around for post event refreshments
  • Free post-race photo with Polie, our Polar Bear Mascot.
  • Back This Year with a new chill design - Custom Finisher Medals!!!

Packet Pickup

  • Advance pick-up at Road Runner Sports (8457 S. Yosemite St., Lone Tree, CO 80124) 11am - 2pm on Saturday, January 16, 2021
  • Race day pick-up opens at 7:00 a.m.

The Polar Bear 5K Run/Walk and Kids Fun Run are part of the RunDenver Series.


  • Rudolph Ramble 5K
  • Polar Bear 5K
  • SuperBowl 5K
  • Valentine's Day 4 Mile
  • That Dam Run 13.1, 10K, and 5K!


  • 7:00 AM - Packet Pickup Opens
  • 8:00 AM - Wave 1 start
  • 9:00 AM - Wave 2 start
  • 10:00 AM - Wave 3 start
  • 11:00 AM - Wave 4 start
  • Waves have limited capacities so please arrive on time for the wave chosen during registration.  Waves will start at the top of each hour, small groups within each wave will be released in a rolling start fashion.
  • Start times and wave sizes subject to change based on safety requirements in place at the time of the event.  Updates will be posted here and on social media.

  • COVID-19 Safety Protocols


The RunDenver Series is the original running series in Colorado and has been a staple for over three decades. Produced by HAL Sports, the series promises a fun time through those winter months, motivating you to stay, or get, active.


The RunDenver Series is proud to support Girls on the Run of the Rockies and Crohn's and Colitis Foundation of America. Learn more at RunDenverSeries.com.


Interested in volunteering for this event? Sign up here.